Turbo Hustle: A great workout
......and will kick your butt. I tried it for the 1st time today and all I have to way is WOW! I was able to do it twice (2 separate times) and almost past out lol.
http://www.youtube.com/watch?v=zui6GTrPJss
http://www.youtube.com/watch?v=zui6GTrPJss